Fix: cibsecret: Use 'ps axww' to avoid truncating issue

When python program calling cibsecret with a small terminal width,
the command ps -ef | grep '[p]acemaker-controld' will return 1, see

cmd = "ps -ef | grep '[p]acemaker-controld' >/dev/null"

When terminal width is small

subprocess.call(cmd, shell=True)

1

When terminal is big enough

subprocess.call(cmd, shell=True)

0

Use 'ps axww' can avoid this issue, also for BSD environment.